EN ISO 5398-4:2019
皮革氧化铬含量的化学测定.第4部分:电感耦合等离子体发射光谱法(ICP- OES)定量测定

Leather - Chemical determination of chromic oxide content - Part 4: Quantification by inductively coupled plasma (ICP)


 

 

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标准号
EN ISO 5398-4:2019
发布
2019年
发布单位
CEN - European Committee for Standardization
当前最新
EN ISO 5398-4:2019
 
 
适用范围
This document describes a method for the determination of chromium in aqueous solution obtained from leather. This is an analysis for total chromium in leather; it is not compound specific or specific to its oxidation state. This method describes the determination of chromium by inductively coupled plasma (ICP) and is applicable to leathers which are expected to have chromic oxide contents in excess of 1 mg/kg. Two techniques for the preparation of the solution to be analysed are included. In the event of dispute@ the wet oxidation technique is intended to be used.

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